package com.qd.panda.service.rule;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.cdqidi.constant.ConstantDto;
import com.cdqidi.db.BaseService;
import com.cdqidi.dto.CacheKey;
import com.cdqidi.exception.ApiException;
import com.cdqidi.util.RedisTemplateUtil;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.qd.common.panda.domain.entity.rule.*;
import com.qd.common.panda.domain.enums.CarParkBillRuleEnum;
import com.qd.panda.mapper.rule.BillRuleSetMapper;
import com.qd.panda.model.BillRuleSet;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.util.StringUtils;

import java.util.*;

import static java.util.stream.Collectors.toList;

/**
 * 费用设置码表
 *
 * @author sjk
 */
@RequiredArgsConstructor
@Service
@Slf4j
public class BillRuleSetService extends BaseService<BillRuleSetMapper, BillRuleSet> {

    private static final String PREFIX_ID = "panda_bill_rule_set_billRule_{0}";
    private static final String PREFIX_LIST = "panda_bill_rule_set_billRule_list";

    private final RedisTemplateUtil<BillRuleSet> redisTemplateUtil;
    private final ObjectMapper objectMapper;


    /**
     * 保存
     *
     * @param dto 页面对象
     * @return 页面对象
     */
    @Transactional(rollbackFor = Exception.class)
    public BillRuleSetDTO save(BillRuleSetDTO dto) {
        final BillRuleSet model = dtoToModel(dto);
        try {
            if (super.save(model)) {
                return modelToDto(model);
            }
            throw new ApiException("添加失败");
        } finally {
            clearCache(model);
            model.freeData();
        }
    }

    /**
     * 修改
     *
     * @param dto 页面对象
     * @return 页面对象
     */
    @Transactional(rollbackFor = Exception.class)
    public BillRuleSetDTO update(BillRuleSetDTO dto) {
        final BillRuleSet historyModel = Optional.ofNullable(getById(dto.getBillRule())).orElseThrow(() -> new ApiException("ID不存在,不能更新"));
        final BillRuleSet model = dtoToModel(dto);
        try {
            if (super.updateById(model)) {
                return modelToDto(model);
            }
            throw new ApiException("更新失败");
        } finally {
            clearCache(historyModel);
            historyModel.freeData();
            model.freeData();
        }
    }

    /**
     * 删除，单个
     *
     * @param billRule 主键
     */
    @Transactional(rollbackFor = Exception.class)
    public void removeById(String billRule) {
        final BillRuleSet model = Optional.ofNullable(getById(billRule)).orElseThrow(() -> new ApiException("数据不存在,不能删除"));
        try {
            if (!super.removeById(billRule)) {
                throw new ApiException("删除失败");
            }
        } finally {
            clearCache(model);
            model.freeData();
        }
    }

    /**
     * 根据传入对象构建查询参数，判断是否存在
     *
     * @param dto 参数
     * @return 存在为true
     */
    @Transactional(readOnly = true)
    public Boolean isExists(BillRuleSetDTO dto) {
        final QueryWrapper<BillRuleSet> queryWrapper = createQueryWrapper(dto);
        final boolean exists = super.count(queryWrapper) > 0;
        queryWrapper.clear();
        return exists;
    }

    /**
     * 根据主键判断数据是否存在
     *
     * @param billRule 主键
     * @return 存在为true
     */
    @Transactional(readOnly = true)
    public Boolean isExistsById(String billRule) {
        boolean exists = false;
        if (StringUtils.hasLength(billRule)) {
            final BillRuleSet model = getById(billRule);
            exists = (null != model);
            if (exists) {
                model.freeData();
            }
        }
        return exists;
    }

    /**
     * 根据主键获取数据
     *
     * @param billRule 主键
     * @return 单条记录
     */
    @Transactional(readOnly = true)
    public BillRuleSet getById(String billRule) {
        final String key = RedisTemplateUtil.getRedisCacheKey(PREFIX_ID, billRule);
        return redisTemplateUtil.get(new CacheKey().setKey(key).setTimeout(ConstantDto.REDIS_TIME_OUT_DAY), () -> super.getById(billRule), BillRuleSet.class);
    }

    /**
     * 根据主键获取数据
     *
     * @param billRule 主键
     * @return 单条记录，转换成页面对象
     */
    @Transactional(readOnly = true)
    public BillRuleSetDTO getByIdDto(String billRule) {
        return Optional.ofNullable(getById(billRule)).map(this::modelToDto).orElse(null);
    }

    /**
     * 根据条件查询单条数据
     *
     * @param dto 查询参数
     * @return 单条记录
     */
    @Transactional(readOnly = true)
    public BillRuleSet getOne(BillRuleSetDTO dto) {
        final QueryWrapper<BillRuleSet> queryWrapper = createQueryWrapper(dto);
        BillRuleSet model = super.getOne(queryWrapper);
        queryWrapper.clear();
        return model;
    }

    /**
     * 根据条件查询单条数据
     *
     * @return 单条记录，转换成页面对象
     */
    @Transactional(readOnly = true)
    public BillRuleSetDTO getOneDto(BillRuleSetDTO dto) {
        return Optional.ofNullable(getOne(dto)).map(this::modelToDto).orElse(null);
    }

    /**
     * 根据条件查询列表数据
     *
     * @return 列表数据
     */
    @Transactional(readOnly = true)
    public List<BillRuleSet> getList() {
        final QueryWrapper<BillRuleSet> queryWrapper = new QueryWrapper<>();
        queryWrapper.orderByAsc("idx");
        final List<BillRuleSet> list = super.list(queryWrapper);
        queryWrapper.clear();
        return list;
    }

    /**
     * 根据条件查询列表数据
     *
     * @return 列表数据，转换成页面对象
     */
    @Transactional(readOnly = true)
    public List<BillRuleSetDTO> getListDto() {
        return modelToDtoList(getList());
    }


    /**
     * 清空缓存
     *
     * @param model 数据库对象
     */
    public void clearCache(BillRuleSet model) {
        if (null == model) {
            return;
        }
        String key = RedisTemplateUtil.getRedisCacheKey(PREFIX_ID, model.getBillRule());
        redisTemplateUtil.deleteByKey(key);
        redisTemplateUtil.deleteByKey(PREFIX_LIST);
    }

    /**
     * 清空缓存
     */
    public void clearCache() {
        redisTemplateUtil.deleteByKey(PREFIX_LIST);
        Optional.ofNullable(redisTemplateUtil.scan(PREFIX_ID.replace("{0}", "*"))).ifPresent(ids -> redisTemplateUtil.getStringRedisTemplate().delete(ids));
    }

    /**
     * 数据库对象转页面对象
     *
     * @param model 数据库对象
     * @return 页面对象
     */
    public BillRuleSetDTO modelToDto(BillRuleSet model) {
        if (null == model) {
            return null;
        }
        final BillRuleSetDTO dto = new BillRuleSetDTO();
        dto.setBillRule(model.getBillRule());
        dto.setBillRuleName(model.getBillRuleName());
        dto.setContent(model.getContent());
        dto.setNote(model.getNote());
        dto.setIdx(model.getIdx());
        buildDisplay(dto);
        return dto;
    }

    /**
     * 页面对象转数据库对象
     *
     * @param dto 页面对象
     * @return 数据库对象
     */
    public BillRuleSet dtoToModel(BillRuleSetDTO dto) {
        if (null == dto) {
            return null;
        }
        final BillRuleSet model = new BillRuleSet();
        model.setBillRule(dto.getBillRule());
        model.setBillRuleName(dto.getBillRuleName());
        model.setContent(dto.getContent());
        model.setNote(dto.getNote());
        model.setIdx(dto.getIdx());
        return model;
    }

    /**
     * 码表转换
     *
     * @param dto 页面对象
     */
    public void buildDisplay(BillRuleSetDTO dto) {

    }

    /**
     * 数据库对象转页面对象
     *
     * @param list 数据库对象
     * @return 页面对象
     */
    public List<BillRuleSetDTO> modelToDtoList(List<BillRuleSet> list) {
        return Optional.ofNullable(list).orElse(Collections.emptyList()).stream().map(this::modelToDto).collect(toList());
    }

    /**
     * 页面对象转数据库对象
     *
     * @param list 页面对象
     * @return 数据库对象
     */
    public List<BillRuleSet> dtoToModelList(List<BillRuleSetDTO> list) {
        return Optional.ofNullable(list).orElse(Collections.emptyList()).stream().map(this::dtoToModel).collect(toList());
    }

    /**
     * 拼装查询参数，除了主键的其他字段会自动加入进来
     *
     * @param dto 查询参数，不为空的属性会被自动加入
     */
    public QueryWrapper<BillRuleSet> createQueryWrapper(BillRuleSetDTO dto) {
        return createQueryWrapper(dto, "");
    }

    /**
     * 拼装查询参数，除了主键的其他字段会自动加入进来
     *
     * @param dto        查询参数，不为空的属性会被自动加入
     * @param tableAlias 表别名
     */
    public QueryWrapper<BillRuleSet> createQueryWrapper(BillRuleSetDTO dto, String tableAlias) {
        final QueryWrapper<BillRuleSet> queryWrapper = new QueryWrapper<>();
        if (null != dto) {
            if (StringUtils.hasLength(tableAlias)) {
                if (tableAlias.charAt(tableAlias.length() - 1) != '.') {
                    tableAlias += ".";
                }
            }
            if (StringUtils.hasLength(dto.getBillRuleName())) {
                queryWrapper.eq(tableAlias + "bill_rule_name", dto.getBillRuleName());
            }
            if (StringUtils.hasLength(dto.getContent())) {
                queryWrapper.eq(tableAlias + "content", dto.getContent());
            }
            if (StringUtils.hasLength(dto.getNote())) {
                queryWrapper.eq(tableAlias + "note", dto.getNote());
            }
        }
        return queryWrapper;
    }

    /**
     * 批量检查主键在数据库中是否存在
     *
     * @param ids 主键集合
     */
    public List<BillRuleSet> checkIds(List<String> ids) {
        if (null == ids || ids.isEmpty()) {
            throw new ApiException("ids不能为空");
        }
        final List<BillRuleSet> list = super.listByIds(ids);
        if (list.isEmpty()) {
            throw new ApiException("ids不存在" + Arrays.toString(ids.toArray()));
        }
        if (ids.size() == list.size()) {
            return list;
        }
        List<String> dbIds = list.stream().map(BillRuleSet::getBillRule).collect(toList());
        final List<String> notExistsList = ids.stream().filter(id -> !dbIds.contains(id)).collect(toList());
        dbIds.clear();
        if (!notExistsList.isEmpty()) {
            throw new ApiException("ids不存在" + Arrays.toString(notExistsList.toArray()));
        }
        return list;
    }

    public BaseRuleDTO getRuleDTO(String billRule, JsonNode rule) {
        BaseRuleDTO baseRuleDTO;
        try {
            switch (Objects.requireNonNull(CarParkBillRuleEnum.getByValue(billRule))) {
                case BILL_RULE1:
                    baseRuleDTO = objectMapper.readValue(rule.toString(), Rule1DTO.class);
                    break;
                case BILL_RULE2:
                    baseRuleDTO = objectMapper.readValue(rule.toString(), Rule2DTO.class);
                    break;
                case BILL_RULE3:
                    baseRuleDTO = objectMapper.readValue(rule.toString(), Rule3DTO.class);
                    break;
                case BILL_RULE4:
                    baseRuleDTO = objectMapper.readValue(rule.toString(), Rule4DTO.class);
                    break;
                case BILL_RULE5:
                    baseRuleDTO = objectMapper.readValue(rule.toString(), Rule5DTO.class);
                    break;
                case BILL_RULE6:
                    baseRuleDTO = objectMapper.readValue(rule.toString(), Rule6DTO.class);
                    break;
                default:
                    throw new ApiException("计费规则不存在");
            }
        } catch (Exception e) {
            e.printStackTrace();
            throw new ApiException("参数错误");
        }
        return baseRuleDTO;
    }
}